Question

Find
surface
area
of sphere of radius 5cm??
please answer​

Answer 1

Area = 316.16cm

.

.

.

Hope this helps

If yes glad I helped

Answer 2

Answer:

Surface area of sphere=4πr

2

=4π×5×5=100πcm

2

curved surface area of cone=πrlcm

2

=4πlcm

2

∴100π=5(4πl)

⇒l=5cm

Now l

2

=h

2

+r

2

⇒5

2

=h

2

+4

2

⇒h

2

=9

⇒h=3

Volume of cone=

3

1

πr2

h

=

3

1

×

7

22

×4×4×3

=

7

35.2

=50.29cm

3

.